Climatological Report (Monthly)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 011252
CLMBIL


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
550 AM MST WED FEB 1 2017

...................................

...THE BILLINGS MT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1934 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            51   01/30
LOWEST            -10   01/05
AVG. MAXIMUM     26.3              36.4   -10.1
AVG. MINIMUM     11.8              17.8    -6.0
MEAN             19.0              27.1    -8.1
DAYS MAX >= 90      0
DAYS MAX <= 32     20
DAYS MIN <= 32     29
DAYS MIN <= 0       7

PRECIPITATION (INCHES)
TOTALS           0.63              0.48    0.15
DAYS >= .01         9
DAYS >= .10         1
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.28   01/31 TO 01/31

SNOWFALL (INCHES)
TOTALS           12.2               8.4     3.8
SINCE 7/1        47.9              28.3    19.6
SNOWDEPTH AVG.      6
DAYS >= TRACE      11
DAYS >= 1.0         5
GREATEST
 SNOW DEPTH        10   01/11
                        01/04
                        01/03
 24 HR TOTAL      5.6   MM

DEGREE_DAYS
HEATING TOTAL    1419              1175     244
 SINCE 7/1       4105              3996     109
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              13.7
HIGHEST WIND SPEED/DIRECTION    44/280    DATE  01/29
HIGHEST GUST SPEED/DIRECTION    52/280    DATE  01/29

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW               10     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      1
HAZE                      5

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...JANUARY 2017 MONTH IN REVIEW FOR BILLINGS...

BELOW IS A SUMMARY OF THE TEMPERATURE...PRECIPITATION...AND WIND
STATISTICS FOR BILLINGS FOR JANUARY 2017. ALL TEMPERATURES ARE IN
DEGREES FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1981 TO 2010. MONTHLY RANKINGS
FOR PRECIPITATION...SNOWFALL...AND TEMPERATURES USE A PERIOD OF RECORD
THAT STARTED IN AUGUST 1934 AT THE BILLINGS AIRPORT. MONTHLY RANKINGS
FOR WIND USE A PERIOD OF RECORD THAT STARTED IN 1984.

NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.

...BILLINGS MONTHLY PRECIPITATION...

 MONTH   2017 VALUES  NORMALS    DEPARTURE  RANKING

JANUARY      0.63     0.48       +0.15      35TH WETTEST OUT OF 83 YEARS
                                            (RECORD WETTEST WAS 2.35 IN 1972)
                                            (WETTEST SINCE 1.09 IN 2015)

...BILLINGS JANUARY 2017 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

0.28 ON JANUARY 31 (OLD RECORD 0.22 IN 2014)

...BILLINGS MONTHLY SNOWFALL...

 MONTH   2017 VALUES  NORMALS    DEPARTURE  RANKING

JANUARY      12.2       8.4       +3.8      TIED FOR THE 24TH SNOWIEST OUT OF 83 YEARS
                                            (RECORD SNOWIEST WAS 27.7 IN 1963)
                                            (SNOWIEST SINCE 18.7 IN 2015)

...BILLINGS JANUARY 2017 BROKEN OR TIED DAILY SNOWFALL RECORDS...

5.6 ON JANUARY 31 (OLD RECORD 5.0 IN 1939)

...BILLINGS AVERAGE TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      19.1      27.1      -8.0      21ST COLDEST OUT OF 83 YEARS
                                           (RECORD COLDEST WAS 5.1 IN 1950)
                                           (COLDEST SINCE 18.8 IN 1997)

...BILLINGS AVERAGE HIGH TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      26.3      36.4     -10.1      16TH COLDEST OUT OF 83 YEARS
                                           (RECORD COLDEST WAS 15.1 IN 1969)
                                           (COLDEST SINCE 26.1 IN 1993)

...BILLINGS JANUARY 2017 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...BILLINGS JANUARY 2017 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...BILLINGS AVERAGE LOW TEMPERATURES...

 MONTH   2017 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      11.8      17.8      -6.0      28TH COLDEST OUT OF 83 YEARS
                                           (RECORD COLDEST WAS -5.2 IN 1950)
                                           (COLDEST SINCE 10.7 IN 1997)

...BILLINGS JANUARY 2017 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

NONE

...BILLINGS JANUARY 2017 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

NONE

...BILLINGS MONTHLY WIND AVERAGES...

 MONTH   2017 VALUES  NORMALS    DEPARTURE  RANKING

JANUARY      13.7      13.2       +0.5      29TH WINDIEST OUT OF 68 YEARS
                                            (RECORD WINDIEST WAS 17.7 IN 1962)
                                            (WINDIEST SINCE 14.5 IN 2015)

$$



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